THORNTON, Colo. — Prosecutors filed a felony child abuse charge Wednesday against a Colorado woman accused of leaving her 2-year-old son alone in a car overnight during a snowstorm when the temperature reached minus 8 degrees.

The child was hospitalized with frostbitten feet and hypothermia after he was found Saturday inside the car in the Denver suburb of Thornton.

Prosecutors say police rescued the boy after his mother, 26-year-old Nicole Alexandria Carmon, reported Saturday morning that she had left him in a car the previous night but couldn’t remember where.

Carmon is represented by a public defender. The public defender’s office didn’t immediately return a phone message Wednesday.

Police began an urgent search for the boy after a woman who sometimes babysat for Carmon reported that Carmon didn’t know where the boy was, according to a police arrest affidavit. The baby-sitter said Carmon had come to her house Saturday looking for the boy, the affidavit said.

Relying on information from Carmon and surveillance video from a gas station, police found her car in a parking lot outside a restaurant, covered by up to six inches of snow, the affidavit said. They found the toddler partially buckled into a car seat.

Carmon told police she had drunk six shots of vodka Friday night and remembered parking her car near a restaurant, walking to a gas station and then getting a ride home, the affidavit said.

Carmon is being held in lieu of $50,000 bond. Her next court appearance is Jan. 13.